Volume 26 Issue 2
Mar.  2005
Turn off MathJax
Article Contents
LI Chun, WEI Fu-wen, HU Jin-chu. Relationship Between Fecal Estradiol and Progesterone Concentrations and Reproductive Startup in Female Red Pandas (Ailurus fulgens). Zoological Research, 2005, 26(2): 147-151.
Citation: LI Chun, WEI Fu-wen, HU Jin-chu. Relationship Between Fecal Estradiol and Progesterone Concentrations and Reproductive Startup in Female Red Pandas (Ailurus fulgens). Zoological Research, 2005, 26(2): 147-151.

Relationship Between Fecal Estradiol and Progesterone Concentrations and Reproductive Startup in Female Red Pandas (Ailurus fulgens)

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2005-04-22
  • By radioimmunoassays, we analyzed fecal estradiol (E2) and progesterone (P) concentrations of four female red pandas (Ailurus fulgens) from Chengdu Zoo and Chengdu Research Base of Giant Panda Breeding from December 1999 to April 2000. Meantime, we investigated mating activity of the red pandas. The results showed that there was a rapid increase in E2 concentration, accompanying several peaks. This implied that female red pandas might be seasonally polyestrous. Before mating, E2 concentration reached the peak, meanwhile, P concentration also increased. This indicated E2 and P were both important factors for promoting the females mating activity. The copulation couldnt occur when E2 concentration reached the peak without P concentration increase, which was a dark rut. P concentration increasing continually after mating, presumably, an ovulation phenomenon had occurred according to the females kittening later. This implies that the ovulation mode of red pandas primarily is inductive, and the inductive factor is mating stimulation.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (2558) PDF downloads(2131) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return